Salicru SLC CUBE 4 7.5 kVA Mode D'emploi page 110

ON
OFF
Fig. 58. Mechanical lock of the UPS maintenance bypass switch.
Set the switch corresponding to the UPS output on the
8.
control panel (external) to "Off".
Set the output switch of the UPS to "Off" (Q2) (only for
9.
tower format devices).
Units with external batteries: Disconnect the battery
10.
cable between the unit and the battery cabinet. Set the
external battery cabinet switch or disconnect switch to
"OFF" (F8).
Set the switch corresponding to the UPS input on the
11.
control panel (external) to "Off".
pass line for the UPS, also set this switch on the control panel
to "Off".
At this point, the unit will stop completely
panel screen switches off).
Set the input switch of the UPS to "Off" (Q1) (only for
12.
tower format devices).
Set the separate static bypass switch of the UPS to "Off"
13.
(Q4) (only for tower format devices).
The unit is now in maintenance bypass operating mode,
described in section 4.5.4.
DANGER OF ELECTRIC SHOCK: before any repair or
maintenance operation inside the unit, to be carried
out solely and exclusively by the qualified Technical Ser-
vice, wait for approximately 5 minutes from this moment,
the required time for the electrolytic capacitors to dis-
charge.
For units with internal batteries, disconnect and iso-
late the positive and negative battery terminals.
In addition, any repair work on the UPS will require
the neutral disconnect mechanism inside the unit to
be activated by the technician, in order to prevent the instal-
lation's differential circuits from tripping, causing the supply
to the load(s) to be disrupted.
6.3.2. Transferring back to normal mode (from
maintenance bypass mode).
To recover the normal operating mode of the UPS, while the unit
is in the maintenance bypass operating mode (see section 4.5.4),
strictly follow the procedure described in this section.
110
ON ON
OFF OFF
If there is a separate by-
(the control
If repair work has been carried out inside the UPS,
before continuing, make sure that all elements, in-
ternal connections, fixing screws, etc., are correctly as-
sembled. The neutral disconnect mechanism must also be
in its normal position, ensuring the continuity of this con-
ductor to the interior of the UPS. With regards to the ex-
ternal cables of the UPS, if they have been handled, make
sure they have been returned to their normal position and
with the correct tightening torque.
Set the switch corresponding to the UPS input on the
1.
panel to "On". If there is a separate bypass line for the UPS,
also set this switch on the control panel to "On".
Connect the external batteries if the unit has them.
2.
Set the input switch of the UPS to "On" (Q1) (only for
3.
tower format devices).
Set the separate static bypass switch to "On" (Q4) (only
4.
for tower format devices).
Set the switch corresponding to the UPS output on the
5.
control panel (external) to "On".
Set the output switch of the UPS to "On" (Q2) (only for
6.
tower format devices).
Check that the UPS supplies voltage simultaneously
7.
to the output via the maintenance bypass switch and
the static bypass: check that the UPS is in bypass mode
and the alarm <3A> shows "maintain is open", and the syn-
optic on the main screen of the control panel is as shown
in Fig. 57.
Only at this point proceed to set the maintenance by-
8.
pass switch on the control panel to
replace its mechanical lock.
Set the maintenance bypass switch of the UPS to "Off"
9.
(Q5) (only for tower format devices).
Replace the mechanical lock of the UPS manual bypass
10.
switch (only for tower format
cover in using the screws provided (see Fig. 58).
The <3A> alarm "maintain is open" disappears.
11.
that the unit's synoptic corresponds to the one in Fig. 56 (unit
in bypass mode).
Press the "CONTROL" icon
12.
screen described in 7.2.
Press the "UPS ON/OFF" icon.
13.
The "Turn on UPS" pop-up box appears with the options
14.
"YES" and "NO". Press "YES".
Check that the UPS switches to online mode
15.
optic on the main screen of the control panel is as shown in
Fig. 54.
The system goes back to operating in normal mode, and the
loads are protected by the UPS against disturbances and
potential supply interruptions.
"Off". If applicable,
devices): screw the metal
Check
You are on the
and the syn-
SALICRU